Depends where you go though doesn't it. I wouldn't say they're all like that.
There are some excellent ones around where I live in Tooting.
not really because they are mass produced
anything mass produced when it comes to indian food doesnt even taste half as good as the proper stuff, mass produced samosas, curries, etc
i know a lot of indian restaurant owners and takeaways, which altogether own over 100 sites
they all use the same base for every single curry because its being mass produced, the same base goes into a korma and a vindaloo, basically everyone gets the exact same curry with a few added ingredients to make it different, this isnt the way its supposed to be done, all these people saying the love british curries fair enough, but if they tries a proper curry, the taste difference is so much, its like comparing red wine to white wine
as for the origins of the word curry
there is a curry which originated from punjab and its called kur-ee , this is a beautiful dish, which usually has potatoes and vegetable pakora inside it
this was probably the first dish someone made and the name just caught on for every other curry
the best thing to do would be have your normal curry in a restaurant and order the staff curry as a side dish and do this every time you go into the restaurant, therefore the staff curry may be one you dont like and therefore its only a small portion, i myself dont like some proper curries, kerelay is one of them and pindia, i know pindia is made from lady fingers but i dont know what the english word for kerelay is
do this everytime you go to that restaurant and you will surely get a different staff curry each time, that way when you find out which ones you like, you could phone in advance and find out what it is and whether you should go in that night or the evening afterwards
also as for attempting to cook one of these yourselves at home, you guys also may not have the correct cooking equipment, the cookers in my kitchen are speccially designed for their needs and to try and cook kur-ee at home would be extremely hard for most of us
you would need a deep fat fryer for a start, which most homes dont have, althought i suppose you could make it without the pakora but it wouldnt taste the same